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25 October, 09:27

2. Calculate the joules of energy required to heat 454.3g of water

frum 5.4°C to 98.6°C.

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Answers (1)
  1. 25 October, 12:25
    0
    176984.38J

    Explanation:

    E = mC∆T

    Where E is the energy in joules

    M is the mass of water

    C is the specific heat capacity of water = 4.184J/g°C

    It is known that it will take 4.184J of energy to change the temperature of water by one degree Celsius.

    ∆T = 98.6°c - 5.4°c

    = 93.2°c

    ∆H = 454.3g * 4.18J/g°C * 93.2°c

    = 176984.3768

    176984.38J
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